3/6/2014 C45R / 1.

1201 - steel equivalent, mechanical properties, chemical composition

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2

C45R ( 1.1201 )

Grade : C45R

Number: 1.1201

EN 10277 - 5 : 2008 Bright steel products. Technical delivery conditions. Steels for quenching and
tempering
Standard:
EN 10083 - 2 : 2006 Steels for quenching and tempering. Technical delivery conditions for non alloy
steels

Classification: Quality steel

Equivalent grades: Go here

Che m ic a l c om pos it ion % of gr a de C4 5 R ( 1 .1 2 0 1 )

Cr + Mo + Ni = 0.63

C Si Mn Ni P S Cr Mo

0.42 - 0.5 max 0.4 0.5 - 0.8 max 0.4 max 0.03 0.02 - 0.04 max 0.4 max 0.1

M e c ha nic a l pr ope r t ie s of gr a de C4 5 R ( 1 .1 2 0 1 )

Nominal thickness (mm): to 16 16 - 100 100 - 250

Rm - Tensile strength (MPa) (+N) 620 580 560

Nominal thickness (mm): 5 - 10 10 - 16 16 - 40 40 - 63 63 - 100

Rm - Tensile strength (MPa) (+C) 750-1050 710-1030 650-1000 630-900 580-850

Nominal thickness(mm): to 16 16 - 100 100 - 250

Re - Upper yield strength or

340 305 275
Rp0.2 - 0.2% proof strength (MPa) (+N)

Nominal thickness(mm): 5 - 10 10 - 16 16 - 40 40 - 63 63 - 100

Rp0.2 0.2% proof strength (MPa) (+C) 565 500 410 360 310

Nominal thickness (mm): 5 - 10 10 - 16 16 - 40 40 - 63 63 - 100

A - Min. elongation at fracture (%) (+C) 5 6 7 8 8

Nominal thickness (mm): to 16 16 - 100 100 - 250

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3/6/2014
Nominal thickness (mm):C45R / 1.1201 - steel equivalent,
to 16mechanical properties,16
chemical composition
- 100 100 - 250

A - Min. elongation Lo = 5,65 √ So (%) (+N) 14 16 16

Brinell hardness (HBW): (+S) 255

Brinell hardness (HBW): (+A) 207

Brinell hardness (HBW): (+SH) 172 - 242

P r ope r t ie s of gr a de C4 5 R ( 1 .1 2 0 1 )
Weldability: Due to the medium-high carbon content it can be welded with some precautions.
Hardenability: It has a low hardenability in water or oil; fit for surface hardening that gives this steel grade a high hardness of the
hardened shell.

Equiva le nt gr a de s of gr a de C4 5 R ( 1 .1 2 0 1 )
Warning! Only for reference
USA Germany France Italy Spain Inter
- DIN,WNr AFNOR UNI UNE ISO
1045 Cm45 XC48H1u C45 C45K1 C45M2
F1145(1)

M e c ha nic a l pr ope r t ie s
M e c ha nis c he Eige ns c ha f t e n
Ca r a c t e r is t ique s m e c a nique s
R eH Minimum yield strength / Mindestwert der oberen Streckgrenze / Limite d�elasticite minimale
R m Tensile strength / Zugfestigkeit / Resistance a la traction
A Minimum elongation / Mindestwert der Bruchdehnung / Allongement minimal
J Notch impact test / Kerbschlagbiegeversuch / Essai de flexion par choc

He a t t r e a t m e nt c ondit ions
+A Soft annealed
+AC Annealed to achieve spheroidization of the carbides
+AR As rolled
+AT Solution annealed
+C Cold drawn / hard
+CR Cold rolled
+FP Treated to ferrite-pearlite structure and hardness range
+I Isothermal annealing
+LC Cold drawn / soft
+M Thermo mechanical rolling
+N Normalized
+NT Normalized and tempered

+P Precipitation hardened
+PE Peeled
+QA Air quenched and tempered
+QL Liquid quenched and tempered
+QT Quenched and tempered
+S Treated to improve shearability
+SH As rolled and turned
+SR Cold drawn and stress relieved
+T Tempered
+TH Treated to hardness range
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3/6/2014 C45R / 1.1201 - steel equivalent, mechanical properties, chemical composition
+TH Treated to hardness range
+WW Warm worked
+U Untreated

Chemical composition of C45R (1.1201). Equivalent grades of C45R (1.1201). Standards of C45R (1.1201).
Properties of C45R (1.1201). Hardness of C45R (1.1201). Strength of C45R (1.1201). Elongation of C45R (1.1201).

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